The diagram illustrates the method by which drinking water is generated from rainwater in a town in Australia. Overall, the process involves a six-stage cyclical sequence, starting with the flow of rainwater into a drain and culminating in the production of clean and safe drinking water.
To begin with, the process starts with rainwater precipitating onto rooftops and entering residential drains through pipes. The water then flows into interconnected underground drains, where it is combined as it moves through the system. Following this, the water undergoes a filtration stage to remove any impurities.
Subsequently, the water is directed through a pipe and stored in a storage tank. After this, the stored water is transferred through another pipe into a separate tank, where it undergoes a water treatment process. In this stage, chemicals are being added to the filtered water, making it safe for consumption.
Lastly, clean water is transported to households, where it is available through taps.